- 专利标题: Servo pattern for precise tracking in optical tapes
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申请号: US15665337申请日: 2017-07-31
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公开(公告)号: US10102875B1公开(公告)日: 2018-10-16
- 发明人: Clark Janssen
- 申请人: Oracle International Corporation
- 申请人地址: US CA Redwood Shores
- 专利权人: Oracle International Corporation
- 当前专利权人: Oracle International Corporation
- 当前专利权人地址: US CA Redwood Shores
- 代理机构: Invoke
- 主分类号: G11B5/008
- IPC分类号: G11B5/008 ; G11B7/09 ; G11B7/24009 ; G11B7/24073 ; G11B7/0045 ; G11B7/005 ; G11B7/24
摘要:
Techniques for performing precise tracking in optical tapes are provided. The techniques include providing and using a servo pattern on an optical tape. The servo pattern includes a first set of parallel physical grooves slanted in a first direction across a width of the optical tape and a second set of parallel physical grooves slanted in a second direction that is different from the first direction across the width of the optical tape. Subsets of the first set of parallel physical grooves alternate with subsets of the second set of parallel physical grooves along a length of the optical tape. Two subsets of the first set of parallel physical grooves separated by one subset of the second set of parallel physical grooves form a servo frame in the optical tape.
公开/授权文献
- US2171333A Relay 公开/授权日:1939-08-29
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